Disney and Lucasfilm haven’t officially announced any new sets for next year, but this repackaging of on-hand stock has almost every time meant a new Disney release is imminent, and that lines up with the (fairly credible) rumors of a “Skywalker Saga” 4K set not just in the works, but ready to go for 2020
The most recent example of this practice was Marvel repackaging all their MCU movies to clear out old stock in advance of the Infinity Saga box set still undated for next year.